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#include <u.h>
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#include <libc.h>
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#include <ip.h>
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int
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myetheraddr(uchar *to, char *dev)
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{
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	int n, fd;
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	char buf[256];
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	if(*dev == '/')
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		sprint(buf, "%s/addr", dev);
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	else
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		sprint(buf, "/net/%s/addr", dev);
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	fd = open(buf, OREAD);
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	if(fd < 0)
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		return -1;
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	n = read(fd, buf, sizeof buf -1 );
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	close(fd);
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	if(n <= 0)
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		return -1;
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	buf[n] = 0;
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	parseether(to, buf);
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	return 0;
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}